<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
  {{info}}
  <h1>{{info}}</h1>
</div>
<!--从CDN服务器引入vue.js框架文件-->
<script src="js/vue.min.js"></script>
<script>
 let v=new Vue({
   el:"body>div",
   data:{info:"该吃饭了"}
 })
</script>
</body>
</html>